Bicycle frame folding structure

Abstract

The invention discloses a bicycle frame folding structure. The bicycle frame folding structure comprises a back seat frame and a front fork, and is characterized in that the tail of the front fork isrotationally connected with the front end of the back seat frame; the front fork is provided with an anti-rotation groove; the back seat frame is provided with a slide groove corresponding to the anti-rotation groove; the slide groove is internally provided with an anti-rotation slide block matched with the anti-rotation groove, and the bottom of the slide groove is provided with a lifting screw;and one end of the lifting screw makes contact with the anti-rotation slide block, and the other end of the lifting screw is exposed to the outer side of the back seat frame. According to the bicycleframe folding structure, the anti-rotation groove, the anti-rotation slide block, the lifting screw and other parts are organically combined, the anti-rotation slide block is driven to ascend and descend through the lifting screw, and thus, locking of the folding structure is achieved; the size of the anti-rotation slide block can be set at will within the width range of a front fork transverse rod, and stable locking is ensured; and in addition, a traditional external folding box structure is omitted, and the structure is simple and more beautiful.

Description

technical field [0001] The invention relates to the technical field of folding bicycles, in particular to a frame folding structure for a folding bicycle or a folding electric power-assisted bicycle. Background technique [0002] Electric folding bicycles have become a common transportation work in modern people's lives. Because electric folding bicycles can be folded and reduce the storage space, they are more and more popular among people, and they are one of the main means of transportation for people. With the progress of the times and the development of science and technology, people have higher and higher requirements for electric folding bicycles. In recent years, various new electric folding bicycles have emerged to meet the needs of consumers. [0003] For example, a Chinese utility model patent with a publication number of CN205113593U discloses a built-in battery integrated rotating and folding human-electric hybrid bicycle frame, such as figure 1 As shown, it in...

AI Technical Summary

Problems solved by technology

However, the way of adopting the folding box is not only complicated in structure, but not beautiful enough; moreover, the reversing power between the front fork 11 and the rear fork 12 is completely acted on the lock handle 133, and the lock handle 133 is mostly in the form of a plate, and its strength is often It is difficult to meet the requirements, resulting in the need to add some additional insurance mechanisms, as described in the Chinese utility model patent with publication number CN209700850U, which in turn leads to a more complicated structure

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